Unit 3: Electromagnetism Flashcards
Atoms contain…
Protons, Neutrons and Electrons
What is the Law of Electric Charges?
Like Charges Repel, and opposite charges attract.
What is the charge of Protons, Neutrons and Electrons?
Protons- Positive
Electrons- Negative
Neutrons- Neutral
What is a Electric Field?
Region around a charged object where electric forces can be exerted on another charged object.
Electric Fields are generally represented by____________
Arrows
The arrows for Electric Field represent?
Direction of Electric Force around a positive particle and a negative particle.
What are Interacting Electric Fields?
When charged particles are close enough to exert a force on each other their electric fields interact.
Electric force is..
Force between the charged objects in an electric force
The size of force depends on these 2 things…
- Amount of Charge
- Distance between the Charges
What are the 3 ways you can use to charge an object?
- Friction
- Conduction
- Induction
Friction: Charging by Friction occurs when:
Electrons are wiped from one object to another.
Conduction: Charging by conduction happens when:
Electrons move from 1 object to another through direct contact
Induction: Charging by induction happens when:
Charges in a uncharged object are rearranged without direct contact with a charged object.
What is the Conversation of Charge? (Think about the Law of Conversation of Mass!)
No charges are created nor destroyed.
An electrical conductor is a material that charges can move?
Easily
